Snowplow



Sept. 22, 1931.

lt F. DAVIDSON SNOWPLOW Filed July 29, 1929 5 Sheets-Sheet l [Mawzfofgmmm ATTORNEY Sept. 22, 1931. l. F. DAVIDSON 1,824,662

SNOWPLOW Filed July 29, 1929 3 Sheets-Sheet 3 ATTORNEY .idly in successive trips.

Patented Sept. 22, 1931 ISAAC Eliinvinsoiv, orl cENTRAnoiNT, OREGON VAsivoWPLow l `Ap piieatinjeifai'iuiyea192e. 'semi No. '381,sc7.

:Theobjectv-of thisi-nventionis toprovide HAT ricain vfraine includes the sideelements Y i atractor propelled or tractordrawn plow including a scoop and arotaryelement-'fer receiving the -snowtrom the'scoop and-discharging it under force in a lateral direction,

and' to provide particular adjustment those indicated below.-

fA 'further objecti'sto provide a plow espei cially adapted 'to 'make or side hill.` Y

the first cut on a grade furthe-r obiectis'ito' provide particular steering mechanism, Aand to effect ver justin-ent by theuse of'certain novel 'cons-truction includin'fr la forward runner to be carried upon the surface oftliesnow. l A further object is'tofprovidein advance of each runner, a 'smallplow 'or 'the' like adapted to fcutfa'. furrow, or-to formjfurrows lin# depenidently on opposite sides, of? such depth respectivelyfas may be =required-in order'to effect levelling transversely y-ofthe machine.

n the drawings, j

`Figure 'i's -aview off the plow'A and ofthe engine `mounting portion of the -structuren t-oppl-an. 1

tion.

inclosing means for the rotary device ter being in elevation. I

Figure 4- is a vertical section onl of Figure 3.

Figure 2 shows theapparatus in side eleva- Figure 3 is a vertical section through the ,the latmei-i Figure 5 is a fragmentary side elevation illustrating one of the guide blades 0f the scoop.

Figure 61s a fragmentary top plan view illustrating the guide blade connected to the side of the scoop.

Figure 7 is a detailed sectional view illustrating the mounting of the vguide-blades to the scoop.

Figure 8 is a plan view, illustrating an at- `taching bracket for the guide blades,

and

apparatus is capable of doing the w ork rapthelike :71,11 adapted to mount Van engine shown 55.

convention-ally and designated 112.` The main shaft-ef 'the' engine shown at 13 carries ajpinionor gear/wheel vltmeshing with gear wheel-l5 on longitudinal. shaft 156. This shaft inounts therotaryfdeviceconstitiiting 60 a main element of '.theplow, and shownl in detail' in Figure'. A` key 1'6" in Figure?) retains tire :rotaryy element in ra given positien lwith reference tothe Adriving shaft.

Runners `18 Vare suitably securedy as 'by 65 means of devices 19 shown especially in Figure 2, :and braces 20serve an obvious :purpose in'elconriection with the lmounting and Vretention of the 'runners with referencetothe main framefincluding elements 10. ;V A tractor'hitch "s-designated '22, and the machine disclosed in Fi'g'ures 1 'and' 2 would be-propelledby the tractor, or may nbe drawn, efectingfconnection at'theforward end as shown at 24. .75 A 5,forward 'iframe inclu-'des the VVforwardly extending elements; suchfas 25, and* theV vertically extenfding' 'elements l'such/fas 26 vand herizonta'lbar 27. i Y 5 A'A'f'scoop28 is pvotallyinounted at 29, with 39 reference to *the stationaryf'portion yof the structure, and aV forward -runner 30Y ad'apte'id to becarried uponfthe Asur'fa-ceof the vsnow shown 'at 31 inFi-gure 2, is pivotallv carried by forwardlyextending bars 32, thepoint yorpivotal point ,of connection, being illusvtratedat f. y A Q f :Bars 32 dependfrom a transversebar lor shaft l345,.being adaptedtoswing with re'feigp ence fthe reto` and slight relative movement is provided by, means of slots 3K5, so'tliat vertical .adius'tmentf ofthe runner ,'30 is lnot interfered with. Shaft,` 34 `is mounted in brackets or'tlielike 3T, land verticaladjust- A35 Yment,offtheloars 32 and `of the runner effec-tedby means ofl a screw ,38 passingthru thebar27 l.and thru a threaded bore at 38h hand wheel 3,9 carried .by the screw permits of the `-adjustmentofthe latter, the lower end` Tlfm of the screw being socketed or connected at 89 with the bars 32.

A steering lever is designated 40, and is held in any adjusted position by means of the detents 41 cooperating with segments 42, the latter being mounted on bar 27. Lever 40 controls bars or the like 43, and the latter control blades or rudders 44 mounted for movement with reference to vertical axes 45.

Each blade 44 has associated therewith and adapted for movement with reference thereto in one direction only a tail or the like 46, these devices being in part under the control of tension elements 47, whereby movement about the axes 45 is permitted, in one direction, and

return to normal position insured. v Hinge connections 48 are shown in Figures 2 and 5 between the tail elements 46 and the vertical axial element 45 and projections 46 are provided on the blades 44 to move the tails 46 in one direction with the blades as shown in Figure 6, it being understood that when the blades are moved in one direction, as shown in Figure 6, one of the tails moves with the respective blade as shown in'dotted lines, while the other tail remains parallel with the side of the scoop and when the blades are moved in an opposite direction the other tail moves angularly to the side of the scoop, while the first tail remains parallel to the sideV of the scoop. Y

A housing for the upper portion of the rotary device, or vwheel constituting the main feature of the plow, so far as disposition of A the snow is concerned,-is designated'50, and

discharge openings or mouth portions for the housing are shown at 51 and 52. The former provides for say a four foot level snow, while the upper discharge opening 52 is used for greater depths.

' The main element ofthe wheel is designated 54, and channelled steely blades 55 are curved approximately as shown and are carried by the wheel, while beveled cutting blades 56 are connected or secured at"5 7, near the point of connection of the elements 55 to the wheel. 54. The beveled cutting blades are likewise connected atv58 to the elements `55, and thelatter serve to engage the snow and eject it laterally of the path of travel of the machine. K A l Forwardly of each runner 18, I ymount a device acting as a plow or the like, and adapted to serve as a leveling element,so that by control ofthe plow, leveling means for the apparatus is provided, as the positionof the plow and the trough or cut made thereby will largely determine the position of the runner on that side of the machine. Each of these plows 60 is mounted on a pivoted bar 61, and the position of element 61 is controlled by vertically extending rods 62 adapted for adjustment manually with reference to a guiding element 63 mounted at each side of the Vthe sled to collect and deliver snow to said means, a supporting rod Vcarried by the sled, an arm journaled to the rod and extending forwardly Vover the, scoop, a snow engaging element carried by the arm in advance of the scoop, and an adjusting rod carried bythe scoop and engaging the arm to-vary the 1ocation of the arm relative to the scoop to increase and decrease ythe cuts of snow made by the scoop.

y2. A snow plow` including a sled havingra power driven snow receiving and delivery means, a scoop pivoted to the forward end of the sled to collect anddeliver snow to said means, vertically disposed guide blades hinged to the'scoop, a steering means for varying the angles of the blades relative to the scoop, and tails for the blades and movable with the blades in one direction.

3. A snow plowincluding a sled having a power driven snow receiving and delivery means, a scoop pivoted to the forward end of the sled to collect and deliver snow to said means, vertically disposed guide blades hinged to the scoop, a steering means for varying the angles of the blades relative to the scoop, tails for the blades and movable with said blades in one direction, and tension means engaging thevblades and tails.

In testimony whereof I aliix my signature.

, ISAAC F. DAVIDSON.

machine. Engaging devices are providedl for 

